Leave in the right time can be a matter of life and death sometimes. This is the case in slipping away games. These are action games in which you will have to avoid obstacles, objects or characters.
In Rocket Rush, for example, you need to make your rocket take off. If you do take off too late or too early, it will crash into a wall and will be destroyed. Everything is a question of seconds.
Slipping away games require speed, accuracy and anticipation.